APA (7th ed.) Citation

ACM Symposium on User Interface Software and Technology, SIGGRAPH, SIGCHI (Group : U.S.), Association for Computing Machinery, & ACM Sigsoft. (1991). Proceedings of the ACM Symposium on User Interface Software and Technology. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

ACM Symposium on User Interface Software and Technology, SIGGRAPH, SIGCHI (Group : U.S.), Association for Computing Machinery, and ACM Sigsoft. Proceedings of the ACM Symposium on User Interface Software and Technology. New York, N.Y.: Association for Computing Machinery, 1991.

MLA (9th ed.) Citation

ACM Symposium on User Interface Software and Technology, et al. Proceedings of the ACM Symposium on User Interface Software and Technology. Association for Computing Machinery, 1991.